Abstract
In 1963, the author described seven new species in the genus Bifidobacterium Orla-Jensen. However, type strains were not designated for these species, and therefore they are here established as follows: Bifidobacterium adolescentis (E194a = ATCC 15703), B. breve (S1 = ATCC 15700), B. infantis (S12 = ATCC 15697), B. lactentis (659 = ATCC 25962), B. liberorum (S76e = ATCC 15702), B. longum (E194b = ATCC 15707), and B. parvulorum (S50 = ATCC 15698). Descriptions of the type strains are given.